Hi.
Imagine a very basic Texture atlas, looking roughly like this: (A and B are the 2 different pieces).
AAB
AA
Now, judging from this, piece A can be found at
[ left: 0.0f, bottom: 0.0f, right: 0.66667f, top: 1.0f ]
I have always imagined, and was sure that piece B could be found at
[ left: 0.66667f, bottom: 0.5f, right: 1.0f, top: 1.0f ]
However, that’s not coming out right at all. Piece B IS coming out right at
[ left: 0.66667f, bottom: 0.0f, right: 1.0f, top: 0.5f ]
however.
I render as triangles, and my data for rendering B looks like this:
Vertexbuffer
float[] {
x - 64, y + 64, // top left
x - 64, y - 64, // bottom left
x + 64, y - 64, // bottom right
x + 64, y + 64 // top right
}
Texturebuffer (doesnt work, but what I thought was correct)
float[] {
0.66667f, 1.0f,
0.66667f, 0.5f,
1.0f,0.5f,
1.0f,1.0f
}
Texturebuffer (works, but what I thought was wrong)
float[] {
0.66667f, 0.5f,
0.66667f, 0.0f,
1.0f,0.0f,
1.0f,0.5f
}
I hope my question is understandable, and that someone can explain to me what’s going on here.